the full restoration would cost hundreds of euros, I quess...
Show us a photo from the other side Olzu.
If it's an 85 frame, I'm not sure it'll be as expensive as you think to get it put back to original spec.
As far as I can see you might want to consider change of saddle and shift levers, but that might be about all you need to change, apart from the paint and decals.
Since I posted the pic of my bike I realized I should have shown you the other side...
"22.jpg " is a pic I found on the net - I think my bike should look like it.
There are also some detail shots of main components of my bike attached. I quess only the rear derailleur is original. It looks like mid 1980´s Super Record to me. Could the brakes be original? What do you think about other components - they look newer. Do you agree?
I´m afraid that the list of components need to be replaced may be quite a long.
Why do you think it is cheaper to restore 1985 frame?